package com.xindaoapp.framework.service;

import java.io.File;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.widget.RemoteViews;

import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.HttpHandler;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.xindaoapp.framework.MainActivity;
import com.xindaoapp.framework.R;

/**
 * ============================================================
 * 
 * 版权 : 新道APP (c) 2014
 * 
 * 作者 : 贺奕凯
 * 
 * 版本 : 1.0
 * 
 * 创建日期 : 2014-6-23 上午11:56:24
 * 
 * 描述 : 更新服务
 * 
 * 修订历史 :
 * 
 * ============================================================
 **/
public class UpdateService extends Service {

	private String app_name;
	private String down_url;
	private String cachePath;
	private NotificationManager notificationManager;
	private Notification notification;
	private Intent updateIntent;
	private PendingIntent pendingIntent;
	private int notification_id = 0;
	private RemoteViews contentView;
	int updateCount = 0;// 已经上传的文件大小
	private static final int TIMEOUT = 10 * 1000;// 超时
	final Message message = new Message();
	private static final int DOWN_OK = 1;
	private static final int DOWN_ERROR = 0;

	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {
		app_name = intent.getStringExtra("app_name");
		down_url = intent.getStringExtra("down_url");
		cachePath = Environment.getExternalStorageDirectory().getAbsolutePath()
				+ "/xindaoapp.apk";

		System.out.println(app_name + "::" + down_url + "::" + cachePath);
		File file = new File(cachePath);
		if (file.exists()) {
			System.out.println("文件删除");
			file.delete();
		}
		createNotification();
		Update();
		return super.onStartCommand(intent, flags, startId);
	}

	/**
	 * 更新方法
	 */
	private void Update() {
		final Handler handler = new Handler(){
			@Override
			public void handleMessage(Message msg) {
				switch (msg.what) {
				case DOWN_OK:
					//下载完成，点击安装
					Uri uri = Uri.fromFile(new File(cachePath));
					Intent intent = new Intent(Intent.ACTION_VIEW);
					intent.setDataAndType(uri,
							"application/vnd.android.package-archive");

					pendingIntent = PendingIntent.getActivity(
							UpdateService.this, 0, intent, 0);

					notification.setLatestEventInfo(UpdateService.this,
							app_name, "下载成功，点击安装", pendingIntent);

					notificationManager.notify(notification_id, notification);

					stopService(updateIntent);
					break;
				case DOWN_ERROR:
					notification.setLatestEventInfo(UpdateService.this,
							app_name, "下载失败", pendingIntent);
					break;

				default:
					stopService(updateIntent);
					break;
				}
			}
		};
		
		HttpUtils http = new HttpUtils();
		HttpHandler handler2 = http.download(down_url, cachePath, true, true,
				new RequestCallBack<File>() {

					@Override
					public void onStart() {
						super.onStart();
					}

					@Override
					public void onSuccess(ResponseInfo<File> arg0) {
						message.what = DOWN_OK;
						handler.sendMessage(message);
					}

					@Override
					public void onFailure(HttpException arg0, String arg1) {
						message.what = DOWN_ERROR;
						handler.sendMessage(message);
						System.out.println("下载失败:" + arg1 + "::\n" + arg0);
					}

					@Override
					public void onLoading(long total, long current,
							boolean isUploading) {
						super.onLoading(total, current, isUploading);
						// 改变通知栏
						contentView.setTextViewText(R.id.notificationTitle, "正在下载...");
						contentView.setTextViewText(R.id.notificationPercent,
								(current*100/total*100)/100 + "%");
						contentView.setProgressBar(R.id.notificationProgress,
								100, (int) ((current*100/total*100)/100), false);
						// show_view
						notificationManager.notify(notification_id,
								notification);
					}

				});
	}

	private void createNotification() {
		notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
		notification = new Notification();
		notification.icon = R.drawable.ic_launcher;
		// 这个参数是通知提示闪出来的值.
		notification.tickerText = "开始下载";
		updateIntent = new Intent(this, MainActivity.class);
		pendingIntent = PendingIntent.getActivity(getBaseContext(), 0,
				updateIntent, 0);
		// 这里面的参数是通知栏view显示的内容
		notification.setLatestEventInfo(getBaseContext(), app_name, "下载:0%",
				pendingIntent);

		contentView = new RemoteViews(getPackageName(),
				R.layout.notification_item);

		notification.contentView = contentView;
		updateIntent = new Intent(this, MainActivity.class);
		updateIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
		pendingIntent = pendingIntent.getActivity(this, 0, updateIntent, 0);

		notification.contentIntent = pendingIntent;

		notificationManager.notify(notification_id, notification);
	}


}
